{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "trigger": true, "arguments": ["Subject.Age", "Subject.Population", "Treatment.Dosage", "Treatment.Disorder", "Subject.Gender", "Treatment.Duration", "Subject.Race", "Subject", "Treatment.Freq", "Treatment.Route", "Treatment", "Combination.Drug", "Treatment.Time_elapsed", "Effect"]}, {"event_type": "adverse event", "trigger": true, "arguments": ["Treatment.Dosage", "Subject.Race", "Treatment", "Subject.Population", "Treatment.Time_elapsed", "Treatment.Duration", "Treatment.Disorder", "Subject.Disorder", "Subject", "Combination.Drug", "Treatment.Freq", "Effect", "Treatment.Drug"]}], "input": "Although transient increases in ectopy after bretylium therapy have been described, presumably due to catecholamine release, the occurrence of life-threatening ventricular arrhythmia leading to cardiac arrest has not previously been emphasized."}
{"potential therapeutic event": [], "adverse event": [{"trigger": "after ", "arguments": {"Treatment.Dosage": "NAN", "Subject.Race": "NAN", "Treatment": "bretylium", "Subject.Population": "NAN", "Treatment.Time_elapsed": "NAN", "Treatment.Duration": "NAN", "Treatment.Disorder": "NAN", "Subject.Disorder": "NAN", "Subject": "NAN", "Combination.Drug": "NAN", "Treatment.Freq": "NAN", "Effect": ["transient increases in ectopy", "life-threatening ventricular arrhythmia leading to cardiac arrest"], "Treatment.Drug": "bretylium"}}]}